Excitation-dependent perovskite/polymer films for ultraviolet visualization

作     者：Junlu Sun Tianshu Li Lin Dong Qilin Hua Shuai Chang Haizheng Zhong Lijun Zhang Chongxin Shan Caofeng Pan 孙俊璐;李天姝;董林;化麒麟;常帅;钟海政;张立军;单崇新;潘曹峰

作者机构：CAS Center for Excellence in NanoscienceBeijing Key Laboratory of Micro-nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 100083China Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Materials Physics(Ministry of Education)School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450001China State Key Laboratory of Integrated OptoelectronicsKey Laboratory of Automobile Materials(Ministry of Education)College of Materials Science and EngineeringJilin UniversityChangchun 130012China MIIT Key Laboratory for Low-Dimensional Quantum Structure and DevicesSchool of Materials Science&EngineeringBeijing Institute of TechnologyBeijing 100081China 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2022年第67卷第17期

页      面：1755-1762页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 08[工学] 0836[工学-生物工程] 

基　　金：supported by the National Natural Science Foundation of China(52125205,11974317,11674290,U20A20166,U1704138,52192614,61805015,and 61804011) the National Key R&D Program of China(2021YFB3200302 and 2021YFB3200304) Natural Science Foundation of Beijing Municipality(Z180011 and 2222088) Shenzhen Science and Technology Program(KQTD20170810105439418) the Fundamental Research Funds for the Central Universities Henan Science Fund for Distinguished Young Scholars(212300410020) Key Project of Henan Higher Education(21A140001) the Zhengzhou University Physics Discipline Improvement Program 

主　　题：Excitation-dependent Perovskite/polymer hybrids Chloride vacancy Ultraviolet visualization 

摘      要：Ultraviolet(UV)visualization has extensive applications in military and civil fields such as security monitoring,space communication,and wearable equipment for health monitoring in the internet of things(IoT).Due to their remarkable optoelectronic features,perovskite materials are regarded as promising candidates for UV light detecting and ***,we report for the first time the excitationdependent perovskite/polymer films with dynamically tunable fluorescence ranging from green to magenta by changing the UV excitation from 260 to 380 *** they still render dynamic multicolor UV light imaging with different polymer matrixes,halogen ratios,and cations of perovskite *** mechanism of its fluorescence change is related to the chloride vacancies in perovskite materials.A patterned multi-color ultraviolet visualization pad is also demonstrated for visible conversion of the UV *** technique may provide a universal strategy for information securities,UV visualizations,and dynamic multi-color displays in the IoT.